West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: KOCHBIHAR LAKE (SAGAR DIGHI) | River Basin: Raidak_Torsa | CPCB Station Code: 2519 |
| Sample Date: 20/01/2022 | Sample Time: 11:45 | |
| Human Activities: None | Weather: Cloudy | Water Body: Coochbihar lake |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Light Green and moderately turbid | Odour: Fishy | Visible effluent discharge: None |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| Ammonia-N | 0.33 | mg/l |
| BOD | 1.80 | mg/l |
| Conductivity | 43.29 | µs/cm |
| Dissolved O2(DO) | 7.80 | mg/l |
| Fecal Coliform | 3400 | MPN/100ml |
| Nitrate-N | 0.05 | mg/l |
| pH | 7.27 | Unit |
| Temperature(Water) | 17 | ⁰C |
| Total Coliform | 13000 | MPN/100ml |
| Boron | 1.82 | mg/l |
| Calcium | 15.23 | mg/l |
| Chloride | 6.85 | mg/l |
| COD | 40.0 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 8.64 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Phosphate-P | 0.002 | mg/l |
| Potassium | 0.40 | mg/l |
| Sodium | 0.80 | mg/l |
| Sulphate | 1.20 | mg/l |
| Total Alkalinity | 24.0 | mg/l |
| Total Dissolved Solids(TDS) | 30.00 | mg/l |
| Total Fixed Solids(TFS) | 32.00 | mg/l |
| Total Hardness as CaCo3 | 68.00 | mg/l |
| Total Suspended Solids(TSS) | 48.00 | mg/l |
| Turbidity | 48.30 | NTU |